OAO Valvetronic Cat-Back Exhaust System for Porsche 911 992 Carrera S / 4S / GTS 3.0T Flat-Six

Elevate the Character of the Porsche 911

Designed specifically for the Porsche 911 992 Carrera S, Carrera 4S, and GTS equipped with the 3.0L twin-turbocharged flat-six engine, the OAO Valvetronic Cat-Back Exhaust System is engineered to enhance exhaust flow, sharpen the vehicle's performance character, and deliver a deeper, richer, and more aggressive Porsche soundtrack.

Combining precision exhaust engineering with electronically controlled valves, the OAO system gives drivers complete control over the exhaust experience.

Keep the valves closed for refined everyday driving, or open them to unleash a more aggressive and emotional exhaust note when the road opens up.

Manufactured from premium T304 stainless steel with precision TIG welding, mandrel-bent tubing, and high-flow muffler technology, the OAO system is engineered for durability, heat resistance, precise fitment, and exceptional performance.

Key Features

✓ Designed for Porsche 911 992 Carrera S / 4S / GTS

✓ 3.0L Twin-Turbocharged Flat-Six Engine

✓ Valvetronic Cat-Back Exhaust System

✓ Electronic Exhaust Valve Control

✓ Premium T304 Stainless Steel Construction

✓ High-Flow Performance Muffler Design

✓ Precision TIG Welded

✓ Mandrel-Bent Exhaust Tubing

✓ Optimized Exhaust Gas Flow

✓ Reduced Exhaust Restriction

✓ Enhanced Porsche Flat-Six Sound

✓ OEM-Style Direct-Fit Design

Intelligent Valvetronic Exhaust Control

The OAO electronic valve system allows you to control the exhaust character according to your driving conditions.

Comfort Mode

With the valves closed, the system delivers a refined and controlled exhaust tone suitable for everyday driving.

Ideal for:

• Daily Commuting

• Highway Cruising

• Long-Distance Touring

• Residential Areas

• Reduced Exhaust Volume

• Comfortable Street Driving

Enjoy the performance character of the 911 while maintaining the refined driving experience expected from Porsche.

Sport Mode

Open the valves and unleash the full character of the 3.0T flat-six.

Experience:

• Increased Exhaust Volume

• Deeper Flat-Six Exhaust Tone

• Stronger Turbocharger Acoustics

• Sharper Acceleration Sound

• More Pronounced Gear-Shift Acoustics

• Enhanced High-RPM Exhaust Character

• More Emotional Driving Experience

The result is a more aggressive soundtrack that matches the dynamic character of the 992 Carrera S, 4S, and GTS.

Performance-Oriented Cat-Back Design

The OAO Cat-Back Exhaust System replaces the rear exhaust section with a high-flow performance configuration designed to improve exhaust efficiency and enhance the overall driving experience.

Potential benefits may include:

• Improved Exhaust Gas Flow

• Reduced Exhaust Backpressure

• Sharper Throttle Response

• Enhanced Turbocharger Sound

• Improved High-RPM Exhaust Flow

• Reduced Exhaust System Weight

• Stronger Flat-Six Exhaust Acoustics

• Better Compatibility with Performance Downpipes

• Improved Overall Exhaust Efficiency

Actual performance gains may vary depending on vehicle configuration and supporting modifications.

Engineered for the Porsche 3.0T Flat-Six

The 992 Carrera S, 4S, and GTS combine twin-turbocharged performance with Porsche's iconic rear-engine flat-six architecture.

The OAO Valvetronic Exhaust is engineered around the characteristics of this performance platform.

Key design considerations include:

• High-Flow Exhaust Routing

• Smooth Exhaust Gas Transitions

• Optimized Tubing Diameter

• Reduced Internal Turbulence

• High-Temperature Resistance

• Performance-Tuned Muffler Design

• Precision Electronic Valve Integration

The system is designed to complement both stock and modified 992 applications.

Enhanced Porsche Flat-Six Sound

The Porsche 3.0T flat-six delivers a distinctive combination of turbocharged response and mechanical character.

The OAO Valvetronic system enhances that personality with a carefully tuned exhaust soundtrack:

• Deeper Cold Start

• Richer Flat-Six Tone

• Stronger Turbocharger Acoustics

• Sharper Throttle Blips

• Enhanced Acceleration Sound

• More Pronounced Downshift Acoustics

• Stronger High-RPM Character

• More Aggressive Sport Sound

With the valves open, the exhaust becomes more expressive and emotional while retaining the flexibility of valve-controlled sound management.

Premium T304 Stainless Steel Construction

Manufactured from premium T304 stainless steel to withstand high exhaust temperatures and demanding performance driving.

Advantages include:

• Excellent Corrosion Resistance

• Superior Heat Resistance

• High Structural Strength

• Lightweight Performance Construction

• Precision TIG Welding

• CNC-Machined Connections

• Long Service Life

• Premium Surface Finish

Every OAO exhaust system undergoes quality inspection before shipment to ensure accurate dimensions, consistent welding quality, and precise fitment.

Premium Porsche Exhaust Styling

The OAO exhaust system is designed to complement the aggressive yet refined appearance of the 992 platform.

Optional exhaust tip finishes may include:

• Carbon Fiber Exhaust Tips

• Titanium Burnt Exhaust Tips

• Polished Stainless Steel Tips

• Matte / Dark Performance Tips

Performance-oriented exhaust tips provide a more distinctive rear appearance while maintaining the iconic Porsche design language.

Vehicle Fitment

Compatible with:

Porsche 911 992 Carrera S

• Carrera S

• 3.0L Twin-Turbo Flat-Six

Porsche 911 992 Carrera 4S

• Carrera 4S

• 3.0L Twin-Turbo Flat-Six

Porsche 911 992 GTS

• Carrera GTS

• 3.0L Twin-Turbo Flat-Six

Model Years

• 2019

• 2020

• 2021

• 2022

• 2023

• 2024

• 2025+

Please verify your exact vehicle model, production year, drivetrain, engine configuration, and factory exhaust layout before ordering.

Package Includes

• OAO Valvetronic Cat-Back Exhaust System

• Electronic Valve Control Module

• Wireless Remote Controller

• Exhaust Installation Hardware

• Clamps / Connection Components

• Protective Packaging

Installation

Designed as a direct-fit cat-back exhaust upgrade utilizing factory mounting locations and exhaust connection points.

No permanent cutting or welding is required for standard installation.

Professional installation is recommended to ensure proper alignment, sealing, and valve operation.

Compatible Performance Upgrades

The OAO 992 Valvetronic Cat-Back Exhaust System can be paired with:

• OAO 992 Performance Downpipes

• OAO High-Flow Downpipes

• High-Flow Catalytic Components

• Performance Air Intake

• ECU Performance Calibration

• Turbocharger Upgrades

• Carbon Fiber Exhaust Tips

• Titanium Exhaust Tips

A properly matched exhaust setup can further enhance exhaust flow, turbocharger response, and overall sound character.

Important Notes

This product is designed for performance applications and should be used in accordance with applicable local laws and regulations.

Please verify local emissions and noise regulations before purchasing or installing this product.

Sound and performance characteristics may vary depending on downpipes, catalysts, ECU tuning, valve settings, and other vehicle modifications.

Vehicle compatibility may vary depending on model year, drivetrain, regional specification, and factory exhaust configuration. Please confirm fitment before ordering.

Why Choose OAO Performance

OAO Performance specializes in premium exhaust systems and performance components for Porsche, BMW M, Mercedes-AMG, Audi RS, Ferrari, Lamborghini, Jaguar, Land Rover, Aston Martin, Nissan GT-R, Chevrolet Corvette, and other high-performance vehicles.

Every OAO exhaust system combines advanced engineering, premium materials, precision TIG welding, electronic valve technology, and rigorous quality control to deliver exceptional fitment, durability, and sound.

Upgrade your Porsche 911 992 Carrera S, Carrera 4S, or GTS with the OAO Valvetronic Cat-Back Exhaust System and experience a deeper, louder, and more emotional 3.0T flat-six soundtrack with complete control over your driving experience.